-Do you know anything about C919?
-Of course. It's a kind of plane which_______China.( )
is made of
is made in
is made from
is made up of
"I want to go to Mars (火星),because it's a place that no one______to before,"said Carson.( )
A.has goneB.has beenC.wasD.went
Mr. Wang is very friendly to us. He is of all the persons I know.( )
A.patientB.less patient
C.more patientD.the most patient
Before stamps,people didn't______for the letters they sent,but for the letters they received.( )
A.payB.costC.spendD.take
______American people and British people speak the same language,their cultures are quite different.( )
A.SinceB.IfC.AlthoughD.Because
Students_______enjoy the colorful school life if they study at home instead of going to school.( )
A.mustn'tB.can'tC.mustD.can